An investigation of transmission control measures during the first 50 days of the COVID-19 epidemic in China

doi:10.1126/science.abb6105

GSTDTAP > 气候变化

DOI	10.1126/science.abb6105
	An investigation of transmission control measures during the first 50 days of the COVID-19 epidemic in China
	Huaiyu Tian; Yonghong Liu; Yidan Li; Chieh-Hsi Wu; Bin Chen; Moritz U. G. Kraemer; Bingying Li; Jun Cai; Bo Xu; Qiqi Yang; Ben Wang; Peng Yang; Yujun Cui; Yimeng Song; Pai Zheng; Quanyi Wang; Ottar N. Bjornstad; Ruifu Yang; Bryan T. Grenfell; Oliver G. Pybus; Christopher Dye
	2020-05-08
发表期刊	Science
出版年	2020
英文摘要	By 23 February 2020, China had imposed a national emergency response to restrict travel and impose social distancing measures on its populace in an attempt to inhibit the transmission of severe acute respiratory syndrome–coronavirus 2 (SARS-CoV-2). However, which measures were most effective is uncertain. Tian et al. performed a quantitative analysis of the impact of control measures between 31 December 2019 and 19 February 2020, which encompasses the Lunar New Year period when millions of people traveled across China for family visits. Travel restrictions in and out of Wuhan were too late to prevent the spread of the virus to 262 cities within 28 days. However, the epidemic peaked in Hubei province on 4 February 2020, indicating that measures such as closing citywide public transport and entertainment venues and banning public gatherings combined to avert hundreds of thousands of cases of infection. It is unlikely that this decline happened because the supply of susceptible people was exhausted, so relaxing control measures could lead to a resurgence. Science , this issue p. [638][1] Responding to an outbreak of a novel coronavirus [agent of coronavirus disease 2019 (COVID-19)] in December 2019, China banned travel to and from Wuhan city on 23 January 2020 and implemented a national emergency response. We investigated the spread and control of COVID-19 using a data set that included case reports, human movement, and public health interventions. The Wuhan shutdown was associated with the delayed arrival of COVID-19 in other cities by 2.91 days. Cities that implemented control measures preemptively reported fewer cases on average (13.0) in the first week of their outbreaks compared with cities that started control later (20.6). Suspending intracity public transport, closing entertainment venues, and banning public gatherings were associated with reductions in case incidence. The national emergency response appears to have delayed the growth and limited the size of the COVID-19 epidemic in China, averting hundreds of thousands of cases by 19 February (day 50). [1]: /lookup/doi/10.1126/science.abb6105
领域	气候变化 ; 资源环境
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/249816
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Huaiyu Tian,Yonghong Liu,Yidan Li,et al. An investigation of transmission control measures during the first 50 days of the COVID-19 epidemic in China[J]. Science,2020.
APA	Huaiyu Tian.,Yonghong Liu.,Yidan Li.,Chieh-Hsi Wu.,Bin Chen.,...&Christopher Dye.(2020).An investigation of transmission control measures during the first 50 days of the COVID-19 epidemic in China.Science.
MLA	Huaiyu Tian,et al."An investigation of transmission control measures during the first 50 days of the COVID-19 epidemic in China".Science (2020).